






🍅 Stop rot before it starts — your garden’s secret weapon!
Bonide Rot-Stop Tomato Blossom End Rot is a 32 oz ready-to-use liquid spray designed to correct calcium deficiency in plants, preventing blossom end rot primarily in tomatoes but also effective for cucumbers, melons, and peppers. It delivers calcium chloride via foliar feeding for fast absorption, is easy to apply with common sprayers, and serves as a vital supplement to regular fertilization programs. Highly rated and trusted by gardeners, it offers a practical, proven solution to keep your produce healthy and rot-free.







| Best Sellers Rank | #53,501 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,345 in Garden Fertilizers |
| Brand | Bonide |
| Customer Reviews | 4.1 out of 5 stars 1,664 Reviews |
| Global Trade Identification Number | 00037321001676 |
| Item Form | Liquid |
| Item Weight | 2.3 Pounds |
| Liquid Volume | 32 Fluid Ounces |
| Specific Uses For Product | Plant Food |
J**S
ABSOLUTELY HEALTHIER PLANT ALMOST INSTANTLY
I was disappointed with seeing End Rot on my plants since I felt that I had done everything right with planting my tomato plants but there it was. I researched my options for treating it and this was highly recommended. I honestly had my doubts, a spray to fix a calcium issue, but it was absolutely effective with only one use.......WOW!! The value was worth every penny because I only lost the first tomato that I saw with it. The size was worth the price, great value. I didn't pay attention to the plant growth since I did not purchase this product for growth but I would have to say, my plants grew taller than expected and absolutely beautiful tomatoes.
B**4
AMAZING---noticed improvement in my tomato rot problem after just one application!
I am so pleased with this product! It allowed me to enjoy tomatoes by nourishing the plants producing rotten ones to stop doing that! I will warn that it is so important to not overkill applying---it mentions applying until it runs off. I think that is a little too much. It makes the plants burn from the sun easy and scaled them back a bit before they grew back. I would just apply enough to spray in each section and then stop--do not keep spraying until run off--they will burn! I have only had to apply once or twice to each plant affected this season, not every week.
K**C
Be careful - can easily burn plants
This product seems to work effectively. I had several roma plants that were suffering due to torrential rain. It depleted the calcium and the end rot showed up. Although this is diluted, be very careful when applying. I applied in the evening when it was cool, I only placed on the leaves and fruit and tried not to over saturate but I still had many leaves that turned brown. The product seemed to work well though in spite of the issues because new fruit does not have end rot and the plants are all blooming nicely.
R**S
Great stuff!
It works!!! No leakage and was bagged in case it did leak. I waited until sunset out of 10 tomato plants only one seemed to have a burn or ill effect. Leaves curled the next morning. Sprinkled some water over it. Came out of it 2 days later. My tomatoes definitely look better!!
H**H
Something Changed in Product
Either the formula changed or the way it was stored was impromper. I saw negative comments about it killing peoples plants. Nieve me assumed they had done something wrong with the application. I have used this exact product for many years purchased from a different supplier and never had an issue. As a matter of fact it has SAVED my garden with each use. However, this product ordered via Amazon killed everything it touched. Even the overspray that got on plants behind the treated plant burned up where ever the mist hit. It was literally like I poured pure acid on my plants. It scorched the leaves and stems over night and by the end of the next day the fruit was shriveled up and scorched on the sides that were exposed to the spray. I leveled my ENTIRE garden over night by using this horrible product. I wish they would replace the huuuuuundreds of dollars and even more in hours spent getting the garden to the point it was at before this $10 product murdered everything it touched. To say we are disappointed is an understatement!!! To further prove it was the product, I cut off all the parts that were decayed from the product, heavily rinsed every plant with the hose and let them just sit where they were and miraculously just now in freaking August they have new green growth. Its in vain though as we live in Michigan and wont have enough season left to get viable fruit. I used to rave about this product and since I don't know if its the manufacturer or the warehouse that lead to this I will no longer sing it's praises. If you make the mistake of buying this and from here on amazon, do a test plant before you murder everything you love...
D**R
Easy to use and understand
Still had some issues with blossom rot after using
J**N
Fast results!
Worked very quickly on my bottom rot and didn't need reapplied for rest of season.
D**E
Works good
Works really well for treating end rot on our tomato plants. Easy to use.
Trustpilot
2 months ago
2 months ago